Röntgen

{
  "id": "MLC-T-CHM-010401",
  "term": "Röntgen",
  "field": "Chemistry",
  "definition": "A non-SI unit of exposure to X-rays or gamma rays, defined by the amount of ionization produced in air. One röntgen corresponds to the generation of 2.58 × 10⁻⁴ coulombs of charge per kilogram of air. This unit is largely superseded by the gray (Gy) and sievert (Sv) in modern dosimetry.",
  "subject": "Physical and Biophysical Chemistry",
  "references": [
    "Green Book, 2nd ed., p. 113 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)",
    "PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 991 (https://doi.org/10.1351/pac199668040957)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/rontgen/"
}